In Antartica the temperature can change drastically between day and night. At 3:00 pm, the tempature was a chilly 7 degrees Celsius. At that time, it began to drop at steady rate of 6 degrees Celsius every hour. At what time was the temperature - 5 degrees Celsius?

Question

Frost

Mathematics

30 March, 01:59

In Antartica the temperature can change drastically between day and night. At 3:00 pm, the tempature was a chilly 7 degrees Celsius. At that time, it began to drop at steady rate of 6 degrees Celsius every hour. At what time was the temperature - 5 degrees Celsius?

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Farley · Answer 1

Step 1: Let x represent the hours it will take to be at - 5 degrees.

Step 2: Create the equation, 7-6x = - 5

Step 3: Solve it. You will get x=2

Step 4: That means after 2 hours it will be - 5 degrees, which means at 5:00 it will be - 5 degrees.